Senior Mainframe z/VM & Linux Systems Engineer

Delan AssociatesPhoenix, AZ

About The Position

We are seeking a highly experienced Senior Mainframe z/VM & Linux Systems Engineer for a long-term contract role. The ideal candidate will be responsible for installing, configuring, administering, and maintaining IBM z/VM environments, as well as provisioning and managing Linux on IBM Z (s390x) virtual servers. This role involves system upgrades, migrations, patching, capacity planning, performance monitoring, and optimization. You will also support high-availability and disaster recovery solutions, configure virtual networking, storage, and security components, and troubleshoot complex infrastructure issues. Automation implementation for provisioning, monitoring, and system administration is a key aspect of this position. Collaboration with various IT teams and participation in on-call support and incident resolution are expected. The role also requires developing and maintaining technical documentation and operational procedures.

Requirements

  • 5+ years of experience supporting IBM Mainframe environments.
  • Strong hands-on experience with z/VM.
  • Strong hands-on experience with Linux on IBM Z (RHEL, SUSE, or Ubuntu for s390x).
  • Strong hands-on experience with IBM Z hardware platforms.
  • Strong hands-on experience with Virtual machine provisioning and administration.
  • Experience with DIRMAINT.
  • Experience with RACF or equivalent security administration.
  • Experience with TCP/IP networking.
  • Experience with Shared File System (SFS).
  • Experience with CMS.
  • Experience with CP commands and system management.
  • Strong Linux administration skills including user management, storage management, system tuning, shell scripting, and performance troubleshooting.
  • Experience supporting virtualized enterprise workloads.

Nice To Haves

  • Experience with IBM z16, z15, z14, or z13 platforms.
  • Experience with LinuxONE environments.
  • Experience with IBM Wave for z/VM.
  • Experience with OpenShift on IBM Z.
  • Experience with Kubernetes.
  • Experience with Docker / Podman containers.
  • Experience with Ansible automation.
  • Experience with Git and DevOps tools.
  • Familiarity with Db2.
  • Familiarity with WebSphere.
  • Familiarity with MQ.
  • Familiarity with CICS integration.
  • Familiarity with Hybrid cloud architectures (AWS, Azure, OCI).
  • Experience with security and compliance frameworks in financial services environments.
  • IBM Certified z/VM System Programmer.
  • Red Hat Certified Engineer (RHCE).
  • SUSE Certified Administrator.
  • Experience with Mainframe Modernization and Linux workload migration initiatives.

Responsibilities

  • Install, configure, administer, and maintain IBM z/VM environments.
  • Provision and manage Linux on IBM Z (s390x) virtual servers.
  • Perform system upgrades, migrations, patching, and capacity planning.
  • Monitor system performance and optimize resource utilization.
  • Support high-availability and disaster recovery solutions.
  • Configure and maintain virtual networking, storage, and security components.
  • Troubleshoot operating system, virtualization, and infrastructure issues.
  • Implement automation for provisioning, monitoring, and system administration tasks.
  • Collaborate with application, database, storage, and network teams.
  • Develop and maintain technical documentation and operational procedures.
  • Participate in on-call support and production incident resolution.
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